Recorded 1954–1975 Girls' name Peak 1970 21 births

Thereas — girls' name

21 babies named Thereas in U.S. Social Security records since 1954, with the highest year being 1970. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1950s51960s51970s11
1970s
Peak decade

52% of everyone ever named Thereas was born in this single decade.

1970
Single peak year

6 babies were named Thereas in 1970 — its busiest year on record.

What the Data Says About Thereas

The Social Security Administration has registered 21 babies named Thereas between 1954 and 1975, spanning 22 consecutive years of U.S. birth records. As a girl's name, Thereas currently falls outside the top 1,000 girls' names for 1975. The name reached its historical peak in 1970, when 6 babies received it in a single year.

Decade-level aggregation shows that Thereas performed strongest in the 1970s, accumulating 11 births during that ten-year window. Across the 3 decades of recorded activity, Thereas shows a stable profile with only moderate drift from its peak decade.

No etymological entry is currently available for Thereas in our reference dataset. These figures derive from SSA's annual national and state-level name files, which include any name appearing at least five times in a given year or state-year; names below that threshold are suppressed for privacy and therefore excluded from the totals shown here. The 21 total represents a lower bound — actual usage may be higher in years or states where the count fell below the disclosure floor. This page is provided for informational and research purposes only and does not constitute personal, legal, or naming advice.

Thereas at a glance

Last recorded 1975

Total births

21

Since 1954

22 years of records

Peak year

1970

6 births that year

Strongest decade: 1970s

Current rank

Unranked

Outside the modern top-1,000

As of 1975

Active since

1954

Recorded for 22 years

Last year on file: 1975

Thereas popularity over time

Annual U.S. births registered with the Social Security Administration · 1975–1954

Last recorded 1975
Peak year (1970)
6
Annual births at peak — across 22 years of records
4.555.566.5 1975197019601954 5

Thereas by decade

Total births in each ten-year window — peak vs trough at a glance

Peak: 1970s
Peak decade
1970s
11 births that decade — 52% of Thereas's all-time total
1950s51960s51970s11

Frequently Asked Questions

How popular is the name Thereas?
21 babies have been named Thereas since 1954. It was last recorded in 1975. The peak year was 1970 with 6 births.
When was Thereas most popular?
Thereas was most popular in the 1970s decade with 11 total births. The single peak year was 1970.
How long has the name Thereas been used?
Thereas has been recorded in Social Security data since 1954, spanning 22 years of data through 1975.
What names are similar to Thereas?
Names with a similar sound or spelling include Theresa, Thelma, Therese, Thea, and 4 more. These share a common prefix and are also used for girls.

Data Sources

Data as of 2024. Source: U.S. Social Security Administration (SSA).

Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, 1954–1975 (ssa.gov/oact/babynames). National-level data includes all names with 5 or more occurrences in a given year.

State-level: Source: U.S. Social Security Administration, Baby Names — State-Level Files (namesbystate.zip). Includes all names with 5 or more occurrences per state per year; rarer names are excluded for privacy.